package com.wangyw.service.impl;

import com.wangyw.service.IHelloWorldService;

public class HelloWorldService implements IHelloWorldService {

	public void sayHello() {
		System.out.println("============Hello World!"); 
	}

	public void sayHello(String param) {
		System.out.println("============Hello World:"+param); 
	}

}
